=== modified file 'addons/openerp/utils/rpc.py'
--- addons/openerp/utils/rpc.py	2011-01-06 14:23:45 +0000
+++ addons/openerp/utils/rpc.py	2011-01-11 17:15:33 +0000
@@ -420,7 +421,7 @@
                         hastoolbar=False, hassubmenu=False):
         if context is None:
             context = self._session.context
-        return self('fields_view_get', view_id, view_type, context,
+        return self('fields_view_get', view_id or False, view_type, context,
                     hastoolbar, hassubmenu)
 
 def name_get(model, id, context=None):